From Seed to Bloom: Growing Dahlias with High-Quality Seeds
Dahlias are beloved for their vibrant colors and varied forms. With Horticult’s Dahlia Seeds, you can start your own flowers from scratch—no tubers required. Here’s how to grow strong, beautiful dahlias from seed.
Step-by-Step Guide
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Sow Early (Indoors Recommended)
Start seeds indoors in pots, trays, or grow bags with a well-draining seed mix. Use 6-inch deep containers for good root growth. horticult.co
Keep soil moist and warm. Expect germination in 7–20 days. horticult.co -
Light & Placement
Move seedlings to a spot with bright, indirect light. Dahlias prefer full sun, but in hot climates some afternoon shade helps. -
Watering & Soil
Use well-draining but moist soil. Water 3 times a week, making sure the soil is never waterlogged. horticult.co -
Transplant & Spacing
Once seedlings have a few true leaves and frost danger is past, transplant outdoors. Space plants 9–12 inches (23–30 cm) apart. -
Maintenance & Care
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Stake taller plants early to prevent falling over.
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Pinch back early growth to encourage branching and more blooms.
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Deadhead spent flowers to push more blooms.
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Watch for pests like aphids, slugs, earwigs. horticult.co
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Bloom & Beyond
You should see flowers around 5 weeks after sowing. horticult.co Once plants die back (in colder climates), dig up tubers, dry them slightly, then store in peat or sawdust over the winter for next year.
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